Expert Witness Says Jackson Was Addicted to Demerol

Was Michael Jackson addicted to the pain medicine Demerol? Dr. Robert Walderman, an addiction expert, says he certainly believes the pop star was addicted to Demerol in the months leading to his death.

"I believe there is evidence that he was dependent on Demerol, possibly," said Waldman. According to USA Today, Walderman suggests that Jackson was also addicted to opioids the month before he suddenly died.

A key symptom of Demerol withdrawal is insomnia, says Walderman, which would explain Jackson's dependency on propofol.